<!DOCTYPE html>
<html>

<head>
    <title>task26</title>
    <meta charset="utf-8">
    <link rel="stylesheet" type="text/css" href="task26.css">
</head>

<body>
    <div id="universe">
        <div id="planet"></div>
        <div id="orbit1"></div>
        <div id="orbit2"></div>
        <div id="orbit3"></div>
        <div id="orbit4"></div>
    </div>
    <div id="ctrl">
        <p>
            <button id="createOrDestroy">创建飞船</button>
        </p>
    </div>
    <script type="text/javascript" src="task26.js"></script>
    <script type="text/javascript" src="ship.js"></script>
</body>

</html>
